Microcode unknown on virtualized OS
rpajik opened this issue · 4 comments
rpajik commented
I got issue after upgrade Debian to Bookworm for testing. Needrestart return microcode unknown instead of the system is virtualized via kvm/qemu.
#needrestart -w -v
[main] eval /etc/needrestart/needrestart.conf
[main] needrestart v3.6
[main] running in root mode
[Core] Using UI 'NeedRestart::UI::stdio'...
[main] systemd detected
[ucode] using NeedRestart::uCode::AMD
[ucode] using NeedRestart::uCode::Intel
[uCode/AMD] #0 cpu vendor id mismatch
[uCode/Intel] #0 current revision: 0x0001
+ iucode_tool --scan-system
+ grep -oE [^[:space:]]+$
+ sig=0x00000f61
+ [ -r /sys/devices/system/cpu/cpu0/microcode/processor_flags ]
+ filter=-S
+ test -r /etc/needrestart/iucode.sh
+ . /etc/needrestart/iucode.sh
+ type bsdtar
+ IUCODE_TOOL_EXTRA_OPTIONS=
+ test -r /etc/default/intel-microcode
+ test = no
+ [ -r /usr/share/misc/intel-microcode* ]
+ iucode_tool -l -S --ignore-broken -tb /lib/firmware/intel-ucode
+ grep 0x00000f61
Use of uninitialized value $processor in concatenation (.) or string at /usr/share/perl5/NeedRestart/uCode.pm line 61.
[ucode] # did not get available microcode version
Failed to check for processor microcode upgrades.
cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Common KVM processor
stepping : 1
microcode : 0x1
cpu MHz : 2499.998
cache size : 16384 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx lm constant_tsc nopl xtopology cpuid tsc_known_freq pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit mmio_unknown
bogomips : 4999.99
clflush size : 64
cache_alignment : 128
address sizes : 40 bits physical, 48 bits virtual
power management:
microcode processor flag:
stat /sys/devices/system/cpu/cpu0/microcode/processor_flags
stat: cannot statx '/sys/devices/system/cpu/cpu0/microcode/processor_flags': No such file or directory
Debian Bullseye works as expected:
#needrestart -w -v
[main] eval /etc/needrestart/needrestart.conf
[main] needrestart v3.5
[main] running in root mode
[Core] Using UI 'NeedRestart::UI::stdio'...
[main] systemd detected
[main] vm detected
[main] inside container or vm, skipping microcode checks
janit42 commented
I'm seeing something similar in an ancient RHEL 7 VM (release 7.9, Kernel 3.10.0-1160.88.1.el7.x86_64) with needrestart v3.6:
# needrestart -wv
[main] eval /etc/needrestart/needrestart.conf
[main] needrestart v3.6
[main] running in root mode
[Core] Using UI 'NeedRestart::UI::stdio'...
[main] systemd detected
[ucode] using NeedRestart::uCode::AMD
[ucode] using NeedRestart::uCode::Intel
[uCode/AMD] #0 cpu vendor id mismatch
[uCode/Intel] #0 current revision: 0xb000040
++ iucode_tool --scan-system
++ grep -oE '[^[:space:]]+$'
+ sig=0x000406f1
+ '[' -r /sys/devices/system/cpu/cpu0/microcode/processor_flags ']'
+ filter=-S
+ test -r /etc/needrestart/iucode.sh
+ . /etc/needrestart/iucode.sh
+ type bsdtar
+ IUCODE_TOOL_EXTRA_OPTIONS=
+ test -r /etc/default/intel-microcode
+ . /etc/default/intel-microcode
++ IUCODE_TOOL_EXTRA_OPTIONS=--ignore-broken
+ test '' = no
+ '[' -r '/usr/share/misc/intel-microcode*' ']'
+ iucode_tool -l -S --ignore-broken --ignore-broken -tb /lib/firmware/intel-ucode
+ grep 0x000406f1
Use of uninitialized value $processor in concatenation (.) or string at /usr/share/perl5/vendor_perl/NeedRestart/uCode.pm line 59.
However, on the same RHEL 7.9 version on a physical host, the output ist partly similar, I'll put it here in case it may help to dug down on the error:
# needrestart -wv
[main] eval /etc/needrestart/needrestart.conf
[main] needrestart v3.6
[main] running in root mode
[Core] Using UI 'NeedRestart::UI::stdio'...
[main] systemd detected
[ucode] using NeedRestart::uCode::AMD
[ucode] using NeedRestart::uCode::Intel
[uCode/AMD] #0 cpu vendor id mismatch
[uCode/Intel] #0 current revision: 0x001f
++ iucode_tool --scan-system
++ grep -oE '[^[:space:]]+$'
+ sig=0x000206c2
+ '[' -r /sys/devices/system/cpu/cpu0/microcode/processor_flags ']'
++ cat /sys/devices/system/cpu/cpu0/microcode/processor_flags
+ filter='-s 0x000206c2,0x1'
+ test -r /etc/needrestart/iucode.sh
+ . /etc/needrestart/iucode.sh
+ type bsdtar
+ IUCODE_TOOL_EXTRA_OPTIONS=
+ test -r /etc/default/intel-microcode
+ . /etc/default/intel-microcode
++ IUCODE_TOOL_EXTRA_OPTIONS=--ignore-broken
+ test '' = no
+ '[' -r '/usr/share/misc/intel-microcode*' ']'
+ iucode_tool -l -s 0x000206c2,0x1 --ignore-broken --ignore-broken -tb /lib/firmware/intel-ucode
+ grep 0x000206c2
Use of uninitialized value $processor in concatenation (.) or string at /usr/share/perl5/vendor_perl/NeedRestart/uCode.pm line 59.
[ucode] # did not get available microcode version
[uCode/AMD] #1 cpu vendor id mismatch
[uCode/Intel] #1 current revision: 0x001f
++ iucode_tool --scan-system
++ grep -oE '[^[:space:]]+$'
+ sig=0x000206c2
+ '[' -r /sys/devices/system/cpu/cpu0/microcode/processor_flags ']'
++ cat /sys/devices/system/cpu/cpu0/microcode/processor_flags
+ filter='-s 0x000206c2,0x1'
+ test -r /etc/needrestart/iucode.sh
+ . /etc/needrestart/iucode.sh
+ type bsdtar
+ IUCODE_TOOL_EXTRA_OPTIONS=
+ test -r /etc/default/intel-microcode
+ . /etc/default/intel-microcode
++ IUCODE_TOOL_EXTRA_OPTIONS=--ignore-broken
+ test '' = no
+ '[' -r '/usr/share/misc/intel-microcode*' ']'
+ iucode_tool -l -s 0x000206c2,0x1 --ignore-broken --ignore-broken -tb /lib/firmware/intel-ucode
+ grep 0x000206c2
Use of uninitialized value $processor in concatenation (.) or string at /usr/share/perl5/vendor_perl/NeedRestart/uCode.pm line 59.
[ucode] # did not get available microcode version
Failed to check for processor microcode upgrades.
jcharaoui commented
Same issue here. On a standard Debian bookworm kvm installation (which includes systemd), needrestart does not detect the virtualised environment. Installing the libimvirt-perl package works around the problem.